Cannot set up email on new iphone 5c.

Be more specific with your problem. Do you mean on the email system on the iPhone platform? Are you using a separate app? Are you trying to create one, or log in with one you have? What type of email are you trying to use with the app?

You can add an email account manually for your new iPhone 5C.To set up an email account and manually enter the settings, follow these steps:1. From the Home screen, tap Settings.2. Tap Mail, Contacts, Calendars.3. Tap Add Account4. Tap desired option like iCloud, Exchange, Google, Yahoo!, AOL, Outlook.com, Other5. Enter your email address, password, and any other requested information6. Tap Next.7. If desired, choose to sync other options such as Contacts and Calendars.8. Tap Save.